JPH0592254A - Method for production and repair of container for molten metal - Google Patents

Method for production and repair of container for molten metal

Info

Publication number
JPH0592254A
JPH0592254A JP4065156A JP6515692A JPH0592254A JP H0592254 A JPH0592254 A JP H0592254A JP 4065156 A JP4065156 A JP 4065156A JP 6515692 A JP6515692 A JP 6515692A JP H0592254 A JPH0592254 A JP H0592254A
Authority
JP
Japan
Prior art keywords
wall
screen
mold
molten metal
coarse mesh
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4065156A
Other languages
Japanese (ja)
Other versions
JP3017354B2 (en
Inventor
Jr Charles W Connors
ダブリユー コナーズ ジユニア チヤールズ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAGUNEKO METORERU Inc
Magneco Metrel Inc
Original Assignee
MAGUNEKO METORERU Inc
Magneco Metrel Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAGUNEKO METORERU Inc, Magneco Metrel Inc filed Critical MAGUNEKO METORERU Inc
Publication of JPH0592254A publication Critical patent/JPH0592254A/en
Application granted granted Critical
Publication of JP3017354B2 publication Critical patent/JP3017354B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/28—Arrangements of linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B22D41/023—Apparatus used for making or repairing linings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/06—Constructional features of mixers for pig-iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1626—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/12—Shells or casings; Supports therefor
    • F27B1/14—Arrangements of linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1626—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall
    • F27D2001/1631—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall using an expandable core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F27D3/145—Runners therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Ceramic Products (AREA)

Abstract

PURPOSE: To quickly dry a lining material in a molten metal containment vessel by forming the inner wall of a mold of a coarse mesh metallic screen, pouring an alumina-silicon carbide mold compound between the inner wall and the outer wall, and drying them by heating. CONSTITUTION: The mold inner wall 19 of an open top walled member 13 is formed of the coarse mesh steel screen 21. The screen 21 is reinforced with frames 23 and the mold compound 37 of the alumina-silicon carbide base refractory is poured into the space between the screen 21 and the outer wall 15. When the space between the outer wall 15 and the screen 21 is filled up with the mold compound is fille 37, it is dried by heating. Since the moisture is removed from the portion of the screen 21, too, the drying is quickly executed. The screen 21 is melted and removed at the receiving time of the molten metal.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の背景及び概要】本発明は、スルー(through)、
ランナー、トリベ、及び熔融した鉄及びスチールを収容
し、処理するのに使用する他の容器のような上開き壁体
部材の製造方法に関する。本発明は、従来式に構成され
た容器部材よりも、速やかに乾燥させることができ、特
に、壁が熔融した鉄及び金属に含まれるスラグと接触す
る壁体収容部材の上部において、多孔質の問題及び欠陥
の少ない壁体収容部材を提供するものである。BACKGROUND AND SUMMARY OF THE INVENTION The present invention provides a through,
The present invention relates to a method for manufacturing an upper opening wall member such as a runner, a trowel, and other containers used for containing and processing molten iron and steel. INDUSTRIAL APPLICABILITY The present invention can be dried more quickly than a container member configured in a conventional manner, and in particular, in the upper part of the wall accommodating member in contact with the slag contained in the molten iron and metal, It is intended to provide a wall accommodating member with few problems and defects.

【０００２】本発明は、壁体収容部材を形成するため、
1990年5月21日に出願され、本特許出願と同じ譲受人に
譲渡された米国特許出願第07/527,033号に記載された注
型配合物を使用する場合に、特に好都合であり、それ
は、注型配合物を型に移送するためのクレーン及びホッ
パー、並びに型の従来式の内壁を構成するスチールプレ
ートの必要性が排除されているからである。前記特許出
願の開示全体は、参照することにより、本明細書に組込
まれている。 従来、熔融した鉄及びスチールを搬送す
るためのスルー及びランナーは、溶鉱炉又は他の熔融金
属容器の出銑スパウト(tap spout)附近の現場において
構成されている。スルー又はランナー用の型は、型の外
壁（下部壁）として溝又は他の有り合せの(existing)構
造体の有り合せの壁を利用している。斯かる型の内壁
（上部壁）は、注型配合物を注入し、注型配合物の硬化
の間に水分を逃すためのガス抜き領域をもたらす外部型
壁と内部型壁との間の空間だけを残して外壁から離れた
重いスチールプレートから形成されている。過去におい
ては、注型配合物を適当に硬化させるのに必要な乾燥工
程は、型の内壁である重いスチールプレートを除去する
のに十分なだけ注型配合物が硬化する迄開始することが
できなかったが、それは、注型配合物の乾燥の間に水分
を逃すためのガス抜き領域が限られていたためであり、
このガス抜き領域は、型の内壁と外壁との間の型上部周
縁部の周りに備っていた。スルー又はランナーが、役に
たたない場合には、炉又は熔融金属容器が使用できず、
炉が使用できない時間は、それぞれ損失になる。According to the present invention, since the wall accommodating member is formed,
It is particularly advantageous when using the casting compound described in U.S. patent application Ser.No. 07 / 527,033, filed May 21, 1990 and assigned to the same assignee as the present patent application, which is: This eliminates the need for a crane and hopper to transfer the casting compound to the mold, and the steel plates that make up the conventional interior walls of the mold. The entire disclosure of said patent application is incorporated herein by reference. Traditionally, slews and runners for transporting molten iron and steel have been constructed in the field near blast furnaces or other tap spouts of molten metal vessels. Molds for thru or runners utilize a matching wall of grooves or other existing structure as the outer wall (lower wall) of the mold. The inner wall (upper wall) of such a mold is the space between the outer mold wall and the inner mold wall that provides a venting area for injecting the casting compound and allowing moisture to escape during curing of the casting compound. It is formed from a heavy steel plate that is separated from the outer wall leaving behind only. In the past, the drying process needed to properly cure the casting compound could be started until the casting compound had cured sufficiently to remove the heavy steel plate that was the inner wall of the mold. It was not because it had a limited venting area to allow water to escape during the drying of the casting compound,
The venting area was provided around the upper mold edge between the inner and outer walls of the mold. If the through or runner is useless, the furnace or molten metal container cannot be used,
Each time the furnace is unavailable will be lost.

【０００３】本発明によれば、従来重いスチールプレー
トで構成されていた内部型壁が、従来の建築構造におい
て注入したコンクリートを保持するのに用いられてきた
種類の粗目メッシュ亜鉛鍍金スチールスクリーンに代え
られている。注型配合物が完全に乾燥した後に熔融金属
を導入することによる粗目メッシュスクリーンの除去
は、完成したコンクリート構造の構成要素としてメッシ
ュが残るコンクリート建築構造における同様のメッシュ
の使用と比較して、本発明方法の顕著な特徴の一つであ
る。本発明の方法において、粗目メッシュスクリーン
を、型の内壁として用いることが、注型配合物の乾燥工
程を、注入工程終了の後直ちに開始することを可能にし
ている。乾燥工程の間、メッシュスクリーンは除去され
ないので、注型配合物が硬化するのを待つ必要はない。
メッシュスクリーンには、乾燥して行く配合物から水分
を抜くのを可能にするのに十分な開口が有り、実際、メ
ッシュスクリーンは、出来上がったスルー又はランナー
に導入する熔融金属により熔融されるまで除去されない
のである。更に、メッシュスクリーンが軽量であり、し
かも、注型配合物が、型のキャビティにポンプで送り込
むことが出来る稠度のものであるため、本発明の方法に
よるスルー及びランナーの構築においては、クレーン及
びホッパーが必要でなく、それにより、斯かる設置費用
が低減される。In accordance with the present invention, an internal mold wall, which was conventionally constructed of heavy steel plates, replaces a coarse mesh zinc plated steel screen of the type used to hold poured concrete in conventional building construction. Has been. The removal of coarse mesh screens by introducing molten metal after the casting compound is completely dried, compared to the use of similar meshes in concrete building structures, where the mesh remains as a component of the finished concrete structure. This is one of the salient features of the inventive method. In the method of the present invention, the use of a coarse mesh screen as the inner wall of the mold allows the process of drying the casting compound to begin immediately after the end of the pouring process. There is no need to wait for the casting compound to cure as the mesh screen is not removed during the drying process.
The mesh screen has enough openings to allow moisture to drain from the drying formulation, in fact the mesh screen is removed until it is melted by the molten metal that is introduced into the finished slew or runner. It is not done. Further, in the construction of slews and runners according to the method of the present invention, cranes and hoppers are used because the mesh screen is lightweight and the casting compound is of a consistency that allows it to be pumped into the mold cavity. Are not required, which reduces such installation costs.

【０００４】本発明は、使い古したスルー、ランナー、
トリベ、及び熔融した鉄及びスチールを収容し、処理す
るのに使用する他の容器の修理及び改修にも適してい
る。修理及び改修は、損傷した耐火材料を除去するこ
と、粗目メッシュスクリーンを型の内壁として据えるこ
と、及び、更新注型配合物を注入することにより行われ
る。更新注型配合物は、スクリーンと、残存する元の配
合物壁との間に注がれる。当初の設置の場合のように、
注型配合物が硬化し、内部型壁が除去されるのを待つこ
となく、乾燥工程を直ちに開始することが出来る。The present invention relates to a used thru, runner,
It is also suitable for the repair and refurbishment of trolleys and other vessels used to contain and process molten iron and steel. Repairs and refurbishments are performed by removing damaged refractory material, placing a coarse mesh screen as the inner wall of the mold, and injecting a recast casting formulation. The renewed casting formulation is poured between the screen and the remaining original formulation wall. As in the original installation,
The drying process can begin immediately without waiting for the casting formulation to harden and the inner mold wall to be removed.

【０００５】[0005]

【実施例】本発明は、添付図面に幾分模式的に図示され
ている。添付図面の図１〜図３は、溶鉱炉又は転炉の出
銑口等の熔融金属源から、鉄及びスチール等の熔融金属
を移送するための収容部材として用いられるスルー又は
ランナー１１等の上開き壁体構造の製造に適した本発明
の方法を示している。スルーは、型１３により形成され
る。型１３の外壁１５は、コンクリート、石又は煉瓦の
溝のような現場形成物でよい。スルーの端壁１７も、現
場構造体であり、溶鉱炉又は他の熔融金属収容源の壁で
よい。本発明の新規な特徴として、型の内部壁、即ち上
部壁１９が、粗目メッシュ亜鉛鍍金スチールスクリーン
２１から形成されている。この種のスクリーンは、「ス
テイ-フォーム(Stay-Form)」の名称でアラバマ州、バー
ミンガムのアラバマ・メタル・インダストリーズ・コーポ
レーション(Alabama Metal Industries Corp.)により販
売されている。勿論、同様な特性を有する他のスクリー
ンを、使用することもできる。この種のスクリーンは、
従来、硬化したコンクリートの永久部分として機能する
スクリーンを有するコンクリート建築構造用の所定位放
置(leave-in-place)成形壁として、用いられてきた。The present invention is illustrated somewhat schematically in the accompanying drawings. 1 to 3 of the accompanying drawings show an upper opening of a through or runner 11 used as a storage member for transferring molten metal such as iron and steel from a molten metal source such as a taphole of a blast furnace or a converter. 1 illustrates a method of the present invention suitable for manufacturing a wall structure. The through is formed by the mold 13. The outer wall 15 of the mold 13 may be an in-situ formation such as concrete, stone or brick ditch. The end wall 17 of the thru is also a field structure, which may be the wall of a blast furnace or other source of molten metal containment. As a novel feature of the invention, the mold inner wall, or top wall 19, is formed from a coarse mesh zinc plated steel screen 21. This type of screen is sold by Alabama Metal Industries Corp. of Birmingham, Alabama under the name "Stay-Form". Of course, other screens with similar characteristics could be used. This kind of screen
Traditionally, it has been used as a leave-in-place molding wall for concrete building structures having a screen that functions as a permanent part of hardened concrete.

【０００６】注型配合物を注入する間、粗目メッシュ金
属スクリーンを所定の位置に保持するため、ワイヤタイ
２７により互に連結された長方形のスチール管２５から
なる枠２３が、型のコンクリート壁１５に支持されてい
る。注型配合物３７が、本発明の好ましい実施態様で
は、1990年5月21日に出願された米国特許出願第07/527,
033号に記載されている種類のアルミナ-炭化珪素系耐火
物である。好ましい注型組成物は、主成分として、耐火
基材を55〜90重量％の間の量含んでいるのがよい。耐火
基材は、30μと7mmとの間の平均粒径を有するのが好ま
しく、焼成クレー、ムライト、褐色熔融アルミナ(brown
fused alumina)、管状アルミナ、又はそれらの混合物
からなるのが好ましい。焼成クレー又はムライトを利用
する場合には、使用量は、60〜75重量％の間であるのが
好ましい。褐色熔融アルミナを用いる場合には、使用量
は、65〜80重量％の間であるのが好ましい。管状アルミ
ナに関しては、使用量は、70〜90重量％の間であるのが
好ましい。A frame 23 of rectangular steel tubes 25 connected together by wire ties 27 is provided on the concrete wall 15 of the mold to hold the coarse mesh metal screen in place during injection of the casting compound. It is supported. The casting compound 37 is, in a preferred embodiment of the present invention, US patent application Ser. No. 07/527, filed May 21, 1990.
An alumina-silicon carbide based refractory of the type described in No. 033. Preferred casting compositions should contain as a main component a refractory substrate in an amount of between 55 and 90% by weight. The refractory substrate preferably has an average particle size of between 30μ and 7mm, including calcined clay, mullite, brown fused alumina (brown).
fused alumina), tubular alumina, or mixtures thereof. When using calcined clay or mullite, the amount used is preferably between 60 and 75% by weight. When using brown fused alumina, the amount used is preferably between 65 and 80% by weight. For tubular alumina, the amount used is preferably between 70 and 90% by weight.

【０００７】耐火材量に加え、注型組成物は、1〜35重
量％の量の炭化珪素を含むのが好ましく、5〜25重量％
の量の炭化珪素を含むのがより好ましい。炭化珪素は、
30μと1.5mmとの間の平均直径を有することが好まし
い。注型組成物は、任意に、2〜10重量％のグラファイ
トを含んでいてもよく、グラファイトは、究極的に、ス
ラグの基材への付着又はスラグによる基材への浸透を防
止する湿潤防止剤(nonwettingagent)として作用する。
グラファイトは、非晶質でも結晶質でもよく、或いはフ
レークの形態でもよい。In addition to the amount of refractory material, the casting composition preferably contains silicon carbide in an amount of 1 to 35% by weight, 5 to 25% by weight.
It is more preferable to include the amount of silicon carbide. Silicon carbide is
It is preferred to have an average diameter between 30μ and 1.5mm. The casting composition may optionally contain from 2 to 10% by weight of graphite, which ultimately prevents the adhesion of the slag to the substrate or the penetration of the slag into the substrate. Acts as a nonwetting agent.
The graphite may be amorphous or crystalline, or it may be in the form of flakes.

【０００８】注型組成物は、更に、水性媒体に細かく分
散した(好ましくはコロイド状)シリカ粒子からなるシリ
カバインダーを含んでいる。好ましくは4〜100mμの間
の平均直径、最も好ましくは8〜20mμの平均直径を有す
るシリカを、先ず、15〜70重量％の間の量、好ましくは
約40重量％の量、水に分散させる。次いで、得られたコ
ロイド状シリカバインダーを、注型組成物の他の成分
と、出来上がる組成物の重量を基準にして8〜14％の間
の量混合する。The casting composition further comprises a silica binder consisting of finely dispersed (preferably colloidal) silica particles in an aqueous medium. Silica, preferably having an average diameter between 4 and 100 mμ, most preferably between 8 and 20 mμ, is first dispersed in water in an amount between 15 and 70% by weight, preferably in an amount of about 40% by weight. .. The colloidal silica binder obtained is then mixed with the other components of the casting composition in an amount of between 8 and 14%, based on the weight of the finished composition.

【０００９】注型組成物は、0.02〜1％の間の硬化剤を
含んでいることが好ましい。好適な硬化剤の例には、ア
ルミン酸カルシウムセメント及び酸化マグネシウムがあ
る。最後に、注型組成物は、5〜20重量％の間の焼成ア
ルミナ、及び1〜10重量％の間の微細シリカ(microsilic
a)を含んでいることが好ましい。焼成アルミナは、シリ
カバインダーと反応して、特に高温において、向上した
結合特性をもたらす沈殿相を形成する。焼成アルミナ
は、0.2〜70μの平均直径を有するのが好ましい。微細
シリカは、注型組成物の初期流動特性を向上させる。微
細シリカは、0.1〜1.0μの平均直径を有するのが好まし
く、0.15〜0.25μの間の平均直径を有するのが最も好ま
しい。注型配合物は、可撓性のチューブ４１を通して、
粗目メッシュスクリーン２１と、型の外壁１５との間の
空隙３９に、ポンプで送られる。The casting composition preferably contains between 0.02 and 1% curing agent. Examples of suitable hardeners are calcium aluminate cement and magnesium oxide. Finally, the casting composition comprises between 5 and 20% by weight of calcined alumina, and between 1 and 10% by weight of microsilica.
It is preferable to include a). The calcined alumina reacts with the silica binder to form a precipitated phase that provides improved binding properties, especially at elevated temperatures. The calcined alumina preferably has an average diameter of 0.2 to 70μ. Fine silica improves the initial flow properties of the casting composition. The fine silica preferably has an average diameter of 0.1-1.0μ, most preferably 0.15-0.25μ. The casting compound is passed through a flexible tube 41,
The space 39 between the coarse mesh screen 21 and the outer wall 15 of the mold is pumped.

【００１０】外壁１５と、型１３の内壁を形成する粗目
メッシュ金属スクリーン２１との間の空隙が、注型配合
物３７で充たされたら、直ちに、添付図面の図２に示す
ように、型の長さに沿って延びる仮設有孔ガスパイプ４
５を据え、注型配合物を乾燥させる熱をくわえる。注型
配合物３７は、型の内壁１９を形成する粗目メッシュ金
属スクリーン２１が、所定の位置に留まっている状態
で、乾燥させることができる。注型配合物は、注型配合
物の外面、即ち低温面が104.4℃(220°Ｆ)に達するまで
加熱する。As soon as the void between the outer wall 15 and the coarse mesh metal screen 21 forming the inner wall of the mold 13 is filled with the casting compound 37, as shown in FIG. Temporary perforated gas pipe 4 extending along the length of the
Place 5 and add heat to dry the casting formulation. The casting compound 37 can be dried with the coarse mesh metal screen 21 forming the inner wall 19 of the mold remaining in place. The casting compound is heated until the outer or cold side of the casting compound reaches 104.4 ° C (220 ° F).

【００１１】粗目メッシュスクリーン２１を、型１３の
内壁１９として用いることにより、型の開いている上部
を通してだけでなく、粗目メッシュ壁を通して水分が逃
げることができるため、従来の型構造に備っている注型
配合物の水分をとばすためのガス抜き領域の他に、追加
のガス抜き領域がもたらされる。したがって、従来の注
型方法により形成されたスルーにおいて起こるスルー上
部の乾燥した注型配合物における泡の発生及び多孔質化
が、本発明の注型方法に従って、かなり減少するか又は
無くなる。By using the coarse mesh screen 21 as the inner wall 19 of the mold 13, water can escape not only through the open upper part of the mold but also through the coarse mesh wall, and thus, the conventional mold structure can be prepared. In addition to the degassing area to drive off the water of the casting compound present, an additional degassing area is provided. Thus, foaming and porosification in the dried casting formulation on top of the slew that occurs in slews formed by conventional casting methods is significantly reduced or eliminated according to the casting method of the present invention.

【００１２】添付図面の図３に示すように、注型配合物
が完全に乾燥した後でも、粗目メッシュ金属スクリーン
２１又はその長方形のスチール管２５からなる支持枠２
３を取り除く必要はない。鉄又はスチールである熔融金
属４９は、熔融金属を排出する注ぎ口５１を通して炉の
出銑口からスルー１１に注ぐことができ、粗目メッシュ
金属スクリーン２１及び支持枠２３を熔かし去る。As shown in FIG. 3 of the accompanying drawings, a support frame 2 consisting of a coarse mesh metal screen 21 or its rectangular steel tube 25, even after the casting compound has been completely dried.
There is no need to remove 3. The molten metal 49, which is iron or steel, can be poured into the through 11 from the tap hole of the furnace through the spout 51 for discharging the molten metal, and the coarse mesh metal screen 21 and the support frame 23 are melted away.

【００１３】本発明の方法は、使い古したスルー、ラン
ナー、トリベ、及び熔融した鉄及びスチールを収容し、
処理するのに用いる他の容器を修理、改修するのにも適
している。斯かる損傷した、又は使い古したスルー１１
の修理は、添付図面の図４に示す方法で行われる。全て
の破損又は損傷した部分、即ち破損又は損傷したスルー
の壁を形成する注型配合物５３を、取り除く。粗目メッ
シュ金属スクリーン２１から構成される内部型壁１９
は、長方形のスチール管２５からなる枠組み２３により
取り付けられ、支持されている。金属スクリーン２１
と、壁を再生するために尚残っている古い注型配合物５
３との間の空隙５５に、注型配合物３７を注入して再築
壁を形成する。The method of the present invention accommodates used thru, runner, trowel, and molten iron and steel,
It is also suitable for repairing and refurbishing other containers used for processing. Such damaged or worn thru 11
Repair is performed by the method shown in FIG. 4 of the accompanying drawings. All broken or damaged parts, i.e. the casting compound 53 forming the walls of the broken or damaged thru, are removed. Inner mold wall 19 composed of a coarse mesh metal screen 21
Are mounted and supported by a framework 23 consisting of a rectangular steel tube 25. Metal screen 21
And old casting compound 5 still left to regenerate the wall
The casting compound 37 is injected into the gap 55 between 3 and 3 to form the rebuilding wall.

【００１４】本明細書に開示した本発明の実施態様は、
目下好適であると考えられるものであるが、本発明の精
神及び範囲から逸脱することなく、種々の変更及び改良
を行うことができることが分る。本発明の範囲は、特許
請求の範囲に示され、特許請求の範囲の均等態様の意味
及び範囲内に入る全ての変更は、本発明の範囲に包含さ
れることを意図するものである。The embodiments of the invention disclosed herein include:
While presently believed to be preferred, it will be appreciated that various changes and modifications can be made without departing from the spirit and scope of the invention. The scope of the present invention is shown in the claims, and all modifications that come within the meaning and range of equivalents of the claims are intended to be included in the scope of the present invention.

【図面の簡単な説明】[Brief description of drawings]

【図１】型の内壁が粗目メッシュ金属で形成されている
スルー型に、注型配合物をポンプ注入する本発明の方法
を示す部分斜視図である。1 is a partial perspective view showing the method of the present invention for pumping a casting compound into a through mold in which the inner wall of the mold is formed of a coarse mesh metal.

【図２】図１の型の長手方向断面図であり、注型配合物
が型壁の間の空隙を充たし、注型配合物を乾燥させるた
め、型に熱が加えられている。2 is a longitudinal cross-sectional view of the mold of FIG. 1, wherein the casting compound has been heated to fill the voids between the mold walls and allow the casting compound to dry.

【図３】出来上がったスルーに注入されている熔融金属
の破断長手方向断面図であり、熔融金属が、型の内壁で
あるワイヤメッシュ及びワイヤメッシュの支持枠を熔融
している。FIG. 3 is a broken longitudinal cross-sectional view of the molten metal injected into the finished through, in which the molten metal melts the wire mesh which is the inner wall of the mold and the supporting frame of the wire mesh.

【図４】本発明方法の、使い古したスルーの修理への適
用を示す、スルーの横方向断面図である。FIG. 4 is a cross-sectional side view of a thru showing the application of the method of the present invention to repairing a worn thru.

【符合の説明】[Explanation of sign]

１１…上開き壁体部材 １３…型 １５…型の外壁 １９…型の内壁 ２１…粗目メッシュスクリーン ３７…注型配合物 ４９…熔融金属 11 ... Upper open wall member 13 ... Mold 15 ... Mold outer wall 19 ... Mold inner wall 21 ... Coarse mesh screen 37 ... Casting compound 49 ... Molten metal

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 熔融金属、特に流動熔融金属を収容する
ための上開き壁体部材の製造方法であって、 収容する熔融金属により熔融可能な粗目メッシュ金属ス
クリーンからなる壁体部材の内側を画定する型の内壁を
形成する工程と、 前記壁体部材を形成するため、アルミナ-炭化珪素注型
配合物を、前記内壁である粗目メッシュスクリーンと、
前記型の外壁との間に移送する工程と、 前記内部型壁である前記粗目メッシュスクリーンが、前
記注型配合物と接触して所定の位置に留まっている間
に、前記注型配合物を乾燥させるため、熱を加える工程
と、 前記上開き壁体部材に高温熔融金属を流入させることに
より、前記粗目メッシュスクリーンを除去する工程と
を、含むことを特徴とする方法。1. A method of manufacturing an upper opening wall member for containing a molten metal, in particular a fluid molten metal, wherein an inner side of a wall member made of a coarse mesh metal screen that can be melted by the molten metal to be contained is defined. A step of forming an inner wall of the mold, in order to form the wall member, an alumina-silicon carbide casting compound, a coarse mesh screen that is the inner wall,
A step of transferring between the outer wall of the mold, the coarse mesh screen of the inner wall of the mold, while contacting the casting compound and staying in place, the casting compound; A method of applying heat for drying, and a step of removing the coarse mesh screen by causing a high-temperature molten metal to flow into the upper opening wall body member. 【請求項２】 前記注型配合物が、ポンプで送り出すこ
とにより移送されることを特徴とする請求項１記載の方
法。2. The method of claim 1, wherein the casting compound is transferred by pumping. 【請求項３】 熔融金属、特に流動熔融金属を収容する
上開き壁体耐火部材の修理方法であって、 前記耐火部材の全ての損傷した又は使い古した部分を取
り除く工程と、 前記壁体部材の内側に、収容する熔融金属により熔融可
能な粗目メッシュ金属スクリーンからなる壁を形成する
工程と、 スルー壁を修復するため、アルミナ-炭化珪素注型配合
物を、前記内壁である粗目メッシュスクリーンと、前記
耐火材料の現存部分との間に移送する工程と、 前記内部型壁である前記粗目メッシュスクリーンが、前
記注型配合物と接触して所定の位置に留まってる間に、
前記注型配合物を乾燥させるため、熱を加える工程と、 前記上開き壁体部材に高温熔融金属を流入させることに
より、前記粗目メッシュスクリーンを除去する工程と
を、含むことを特徴とする方法。3. A method of repairing an upper opening wall refractory member containing a molten metal, in particular a flowing molten metal, comprising a step of removing all damaged or worn parts of the refractory member, Inside, a step of forming a wall made of a coarse mesh metal screen that can be melted by the molten metal to be housed, in order to repair the through wall, alumina-silicon carbide casting compound, the inner wall of the coarse mesh screen, Transferring to and from an existing portion of the refractory material, the coarse mesh screen being the inner mold wall, while in contact with the casting compound and staying in place,
A step of applying heat to dry the casting compound, and a step of removing the coarse mesh screen by injecting a high temperature molten metal into the upper opening wall member, ..
JP4065156A 1991-03-22 1992-03-23 Manufacturing and repair method of molten metal container Expired - Fee Related JP3017354B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67395491A 1991-03-22 1991-03-22
US07/673954 1991-03-22

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JPH0592254A true JPH0592254A (en) 1993-04-16
JP3017354B2 JP3017354B2 (en) 2000-03-06

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US (2) US5482248A (en)
EP (1) EP0505141B1 (en)
JP (1) JP3017354B2 (en)
KR (1) KR100224508B1 (en)
AT (1) ATE138001T1 (en)
AU (1) AU1307792A (en)
CA (1) CA2062697C (en)
DE (1) DE69210664T2 (en)

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AU1307792A (en) 1992-09-24
EP0505141A1 (en) 1992-09-23
DE69210664T2 (en) 1996-12-05
US5482248A (en) 1996-01-09
US5505893A (en) 1996-04-09
CA2062697C (en) 1997-04-22
CA2062697A1 (en) 1992-09-23
EP0505141B1 (en) 1996-05-15
ATE138001T1 (en) 1996-06-15
JP3017354B2 (en) 2000-03-06
KR920017746A (en) 1992-10-21
KR100224508B1 (en) 1999-10-15
DE69210664D1 (en) 1996-06-20

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